| 摘要 |
Imparting of a blue dye to a gasoline composition comprising a major amount of a substantially colorless gasoline having a Research Octane No. of at least 95, a Motor Octane No. of at least 85, density at 15°C in the range 720 to 775 kg/m3 , sulphur content not greater than 50 mg/kg (ppmw), oxygenate content 0 to 15% v/v contributing to oxygen content not greater than 2.7% w/w, olefins content 0 to 18% v/v, aromatics content 15 to 35% v/v giving overall benzene content not greater than 1.0% v/v, the balance of gasoline being saturated hydrocarbon, to highlight the purity of the gasoline composition by imparting to it a translucent blue hue.
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